Question: A parallel flow double pipe heat exchanger using superhe water at the rate of 20000 kg/h. The steam enters the heat exchanger at 180

A parallel flow double pipe heat exchanger using superhe water at the rate of 20000 kg/h. The steam enters the heat exchanger at 180 C and leaves at 130 C. The inlet and exit temperatures of water are 30 C and 70 C respectively. If overall heat transfer coefficient from steam to water is 814 W/m C, calculate the heat transfer area. (10) Analyze the change in area if fluids flows were counter?

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